Home / 1,048.40-1,563.34-1,039.02

Finding the Fourth Proportional to 1,048.40, 1,563.34 and 1,039.02

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Solution

The fourth proportional to 1,048.40, 1,563.34 and 1,039.02 is: 1,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.40 : 1,563.34 = 1,039.02 : x
  2. Step 2: Convert to fraction form
    1,048.40/1,563.34 = 1,039.02/x
  3. Step 3: Cross multiply
    1,048.40x = 1,563.34 × 1,039.02
  4. Step 4: Simplify right side
    1,048.40x = 1,624,341.53
  5. Step 5: Solve for x
    x = 1,624,341.53/1,048.40
  6. Step 6: Final answer
    x = 1,549.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.