Home / 1,140.04-1,571.10-1,046.92

Finding the Fourth Proportional to 1,140.04, 1,571.10 and 1,046.92

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Solution

The fourth proportional to 1,140.04, 1,571.10 and 1,046.92 is: 1,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.04 : 1,571.10 = 1,046.92 : x
  2. Step 2: Convert to fraction form
    1,140.04/1,571.10 = 1,046.92/x
  3. Step 3: Cross multiply
    1,140.04x = 1,571.10 × 1,046.92
  4. Step 4: Simplify right side
    1,140.04x = 1,644,816.01
  5. Step 5: Solve for x
    x = 1,644,816.01/1,140.04
  6. Step 6: Final answer
    x = 1,442.77

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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.