Home / 5,643.04-7,787.30-3,125.09

Finding the Fourth Proportional to 5,643.04, 7,787.30 and 3,125.09

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Solution

The fourth proportional to 5,643.04, 7,787.30 and 3,125.09 is: 4,312.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.04 : 7,787.30 = 3,125.09 : x
  2. Step 2: Convert to fraction form
    5,643.04/7,787.30 = 3,125.09/x
  3. Step 3: Cross multiply
    5,643.04x = 7,787.30 × 3,125.09
  4. Step 4: Simplify right side
    5,643.04x = 24,336,017.20
  5. Step 5: Solve for x
    x = 24,336,017.20/5,643.04
  6. Step 6: Final answer
    x = 4,312.57

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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.