Home / 1,875.47-2,589.18-1,129.59

Finding the Fourth Proportional to 1,875.47, 2,589.18 and 1,129.59

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Solution

The fourth proportional to 1,875.47, 2,589.18 and 1,129.59 is: 1,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.47 : 2,589.18 = 1,129.59 : x
  2. Step 2: Convert to fraction form
    1,875.47/2,589.18 = 1,129.59/x
  3. Step 3: Cross multiply
    1,875.47x = 2,589.18 × 1,129.59
  4. Step 4: Simplify right side
    1,875.47x = 2,924,711.84
  5. Step 5: Solve for x
    x = 2,924,711.84/1,875.47
  6. Step 6: Final answer
    x = 1,559.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.