Home / 5,307.40-7,950.15-3,109.46

Finding the Fourth Proportional to 5,307.40, 7,950.15 and 3,109.46

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Solution

The fourth proportional to 5,307.40, 7,950.15 and 3,109.46 is: 4,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.40 : 7,950.15 = 3,109.46 : x
  2. Step 2: Convert to fraction form
    5,307.40/7,950.15 = 3,109.46/x
  3. Step 3: Cross multiply
    5,307.40x = 7,950.15 × 3,109.46
  4. Step 4: Simplify right side
    5,307.40x = 24,720,625.89
  5. Step 5: Solve for x
    x = 24,720,625.89/5,307.40
  6. Step 6: Final answer
    x = 4,657.77

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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.