Home / 1,359.07-2,038.65-434.76

Finding the Fourth Proportional to 1,359.07, 2,038.65 and 434.76

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Solution

The fourth proportional to 1,359.07, 2,038.65 and 434.76 is: 652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359.07 : 2,038.65 = 434.76 : x
  2. Step 2: Convert to fraction form
    1,359.07/2,038.65 = 434.76/x
  3. Step 3: Cross multiply
    1,359.07x = 2,038.65 × 434.76
  4. Step 4: Simplify right side
    1,359.07x = 886,323.47
  5. Step 5: Solve for x
    x = 886,323.47/1,359.07
  6. Step 6: Final answer
    x = 652.15

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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.