Home / 1,875.43-2,590.28-1,432.36

Finding the Fourth Proportional to 1,875.43, 2,590.28 and 1,432.36

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Solution

The fourth proportional to 1,875.43, 2,590.28 and 1,432.36 is: 1,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.43 : 2,590.28 = 1,432.36 : x
  2. Step 2: Convert to fraction form
    1,875.43/2,590.28 = 1,432.36/x
  3. Step 3: Cross multiply
    1,875.43x = 2,590.28 × 1,432.36
  4. Step 4: Simplify right side
    1,875.43x = 3,710,213.46
  5. Step 5: Solve for x
    x = 3,710,213.46/1,875.43
  6. Step 6: Final answer
    x = 1,978.33

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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.