Home / 5,312.79-7,328.88-3,423.87

Finding the Fourth Proportional to 5,312.79, 7,328.88 and 3,423.87

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Solution

The fourth proportional to 5,312.79, 7,328.88 and 3,423.87 is: 4,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.79 : 7,328.88 = 3,423.87 : x
  2. Step 2: Convert to fraction form
    5,312.79/7,328.88 = 3,423.87/x
  3. Step 3: Cross multiply
    5,312.79x = 7,328.88 × 3,423.87
  4. Step 4: Simplify right side
    5,312.79x = 25,093,132.37
  5. Step 5: Solve for x
    x = 25,093,132.37/5,312.79
  6. Step 6: Final answer
    x = 4,723.16

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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.