Home / 1,585.02-2,377.80-489.14

Finding the Fourth Proportional to 1,585.02, 2,377.80 and 489.14

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Solution

The fourth proportional to 1,585.02, 2,377.80 and 489.14 is: 733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.02 : 2,377.80 = 489.14 : x
  2. Step 2: Convert to fraction form
    1,585.02/2,377.80 = 489.14/x
  3. Step 3: Cross multiply
    1,585.02x = 2,377.80 × 489.14
  4. Step 4: Simplify right side
    1,585.02x = 1,163,077.09
  5. Step 5: Solve for x
    x = 1,163,077.09/1,585.02
  6. Step 6: Final answer
    x = 733.79

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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.