Home / 5,045.72-6,962.85-2,807.57

Finding the Fourth Proportional to 5,045.72, 6,962.85 and 2,807.57

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Solution

The fourth proportional to 5,045.72, 6,962.85 and 2,807.57 is: 3,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,045.72 : 6,962.85 = 2,807.57 : x
  2. Step 2: Convert to fraction form
    5,045.72/6,962.85 = 2,807.57/x
  3. Step 3: Cross multiply
    5,045.72x = 6,962.85 × 2,807.57
  4. Step 4: Simplify right side
    5,045.72x = 19,548,706.18
  5. Step 5: Solve for x
    x = 19,548,706.18/5,045.72
  6. Step 6: Final answer
    x = 3,874.32

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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.