Home / 5,642.10-7,787.04-3,285.63

Finding the Fourth Proportional to 5,642.10, 7,787.04 and 3,285.63

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Solution

The fourth proportional to 5,642.10, 7,787.04 and 3,285.63 is: 4,534.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.10 : 7,787.04 = 3,285.63 : x
  2. Step 2: Convert to fraction form
    5,642.10/7,787.04 = 3,285.63/x
  3. Step 3: Cross multiply
    5,642.10x = 7,787.04 × 3,285.63
  4. Step 4: Simplify right side
    5,642.10x = 25,585,332.24
  5. Step 5: Solve for x
    x = 25,585,332.24/5,642.10
  6. Step 6: Final answer
    x = 4,534.72

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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.