Home / 3,549.12-4,897.68-1,977.18

Finding the Fourth Proportional to 3,549.12, 4,897.68 and 1,977.18

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Solution

The fourth proportional to 3,549.12, 4,897.68 and 1,977.18 is: 2,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.12 : 4,897.68 = 1,977.18 : x
  2. Step 2: Convert to fraction form
    3,549.12/4,897.68 = 1,977.18/x
  3. Step 3: Cross multiply
    3,549.12x = 4,897.68 × 1,977.18
  4. Step 4: Simplify right side
    3,549.12x = 9,683,594.94
  5. Step 5: Solve for x
    x = 9,683,594.94/3,549.12
  6. Step 6: Final answer
    x = 2,728.45

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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.