Home / 1,555.28-2,332.60-733.20

Finding the Fourth Proportional to 1,555.28, 2,332.60 and 733.20

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Solution

The fourth proportional to 1,555.28, 2,332.60 and 733.20 is: 1,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.28 : 2,332.60 = 733.20 : x
  2. Step 2: Convert to fraction form
    1,555.28/2,332.60 = 733.20/x
  3. Step 3: Cross multiply
    1,555.28x = 2,332.60 × 733.20
  4. Step 4: Simplify right side
    1,555.28x = 1,710,262.32
  5. Step 5: Solve for x
    x = 1,710,262.32/1,555.28
  6. Step 6: Final answer
    x = 1,099.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.