Home / 5,312.45-7,968.95-1,614.39

Finding the Fourth Proportional to 5,312.45, 7,968.95 and 1,614.39

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Solution

The fourth proportional to 5,312.45, 7,968.95 and 1,614.39 is: 2,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.45 : 7,968.95 = 1,614.39 : x
  2. Step 2: Convert to fraction form
    5,312.45/7,968.95 = 1,614.39/x
  3. Step 3: Cross multiply
    5,312.45x = 7,968.95 × 1,614.39
  4. Step 4: Simplify right side
    5,312.45x = 12,865,023.28
  5. Step 5: Solve for x
    x = 12,865,023.28/5,312.45
  6. Step 6: Final answer
    x = 2,421.68

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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.