Home / 1,470.04-2,205.56-921.58

Finding the Fourth Proportional to 1,470.04, 2,205.56 and 921.58

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Solution

The fourth proportional to 1,470.04, 2,205.56 and 921.58 is: 1,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.04 : 2,205.56 = 921.58 : x
  2. Step 2: Convert to fraction form
    1,470.04/2,205.56 = 921.58/x
  3. Step 3: Cross multiply
    1,470.04x = 2,205.56 × 921.58
  4. Step 4: Simplify right side
    1,470.04x = 2,032,599.98
  5. Step 5: Solve for x
    x = 2,032,599.98/1,470.04
  6. Step 6: Final answer
    x = 1,382.68

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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.