Home / 1,547.17-2,320.44-1,288.83

Finding the Fourth Proportional to 1,547.17, 2,320.44 and 1,288.83

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Solution

The fourth proportional to 1,547.17, 2,320.44 and 1,288.83 is: 1,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.17 : 2,320.44 = 1,288.83 : x
  2. Step 2: Convert to fraction form
    1,547.17/2,320.44 = 1,288.83/x
  3. Step 3: Cross multiply
    1,547.17x = 2,320.44 × 1,288.83
  4. Step 4: Simplify right side
    1,547.17x = 2,990,652.69
  5. Step 5: Solve for x
    x = 2,990,652.69/1,547.17
  6. Step 6: Final answer
    x = 1,932.98

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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.