Home / 1,569.33-2,159.28-1,439.73

Finding the Fourth Proportional to 1,569.33, 2,159.28 and 1,439.73

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Solution

The fourth proportional to 1,569.33, 2,159.28 and 1,439.73 is: 1,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.33 : 2,159.28 = 1,439.73 : x
  2. Step 2: Convert to fraction form
    1,569.33/2,159.28 = 1,439.73/x
  3. Step 3: Cross multiply
    1,569.33x = 2,159.28 × 1,439.73
  4. Step 4: Simplify right side
    1,569.33x = 3,108,780.19
  5. Step 5: Solve for x
    x = 3,108,780.19/1,569.33
  6. Step 6: Final answer
    x = 1,980.96

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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.