Home / 5,656.24-7,805.40-3,172.08

Finding the Fourth Proportional to 5,656.24, 7,805.40 and 3,172.08

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Solution

The fourth proportional to 5,656.24, 7,805.40 and 3,172.08 is: 4,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.24 : 7,805.40 = 3,172.08 : x
  2. Step 2: Convert to fraction form
    5,656.24/7,805.40 = 3,172.08/x
  3. Step 3: Cross multiply
    5,656.24x = 7,805.40 × 3,172.08
  4. Step 4: Simplify right side
    5,656.24x = 24,759,353.23
  5. Step 5: Solve for x
    x = 24,759,353.23/5,656.24
  6. Step 6: Final answer
    x = 4,377.35

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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.