Home / 3,549.48-4,899.42-2,153.40

Finding the Fourth Proportional to 3,549.48, 4,899.42 and 2,153.40

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Solution

The fourth proportional to 3,549.48, 4,899.42 and 2,153.40 is: 2,972.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.48 : 4,899.42 = 2,153.40 : x
  2. Step 2: Convert to fraction form
    3,549.48/4,899.42 = 2,153.40/x
  3. Step 3: Cross multiply
    3,549.48x = 4,899.42 × 2,153.40
  4. Step 4: Simplify right side
    3,549.48x = 10,550,411.03
  5. Step 5: Solve for x
    x = 10,550,411.03/3,549.48
  6. Step 6: Final answer
    x = 2,972.38

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Half scale
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Double scale
Find fourth proportional to 3,550.48, 4,900.80 and 2,154.40
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.