Home / 5,307.10-7,964.90-3,117.66

Finding the Fourth Proportional to 5,307.10, 7,964.90 and 3,117.66

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Solution

The fourth proportional to 5,307.10, 7,964.90 and 3,117.66 is: 4,678.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.10 : 7,964.90 = 3,117.66 : x
  2. Step 2: Convert to fraction form
    5,307.10/7,964.90 = 3,117.66/x
  3. Step 3: Cross multiply
    5,307.10x = 7,964.90 × 3,117.66
  4. Step 4: Simplify right side
    5,307.10x = 24,831,850.13
  5. Step 5: Solve for x
    x = 24,831,850.13/5,307.10
  6. Step 6: Final answer
    x = 4,678.99

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1.5x scale

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.