Home / 1,417.29-2,125.79-377.31

Finding the Fourth Proportional to 1,417.29, 2,125.79 and 377.31

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Solution

The fourth proportional to 1,417.29, 2,125.79 and 377.31 is: 565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.29 : 2,125.79 = 377.31 : x
  2. Step 2: Convert to fraction form
    1,417.29/2,125.79 = 377.31/x
  3. Step 3: Cross multiply
    1,417.29x = 2,125.79 × 377.31
  4. Step 4: Simplify right side
    1,417.29x = 802,081.82
  5. Step 5: Solve for x
    x = 802,081.82/1,417.29
  6. Step 6: Final answer
    x = 565.93

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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.