Home / 1,525.02-2,287.64-647.71

Finding the Fourth Proportional to 1,525.02, 2,287.64 and 647.71

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Solution

The fourth proportional to 1,525.02, 2,287.64 and 647.71 is: 971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.02 : 2,287.64 = 647.71 : x
  2. Step 2: Convert to fraction form
    1,525.02/2,287.64 = 647.71/x
  3. Step 3: Cross multiply
    1,525.02x = 2,287.64 × 647.71
  4. Step 4: Simplify right side
    1,525.02x = 1,481,727.30
  5. Step 5: Solve for x
    x = 1,481,727.30/1,525.02
  6. Step 6: Final answer
    x = 971.61

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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.