Home / 6,290.50-9,423.42-4,315.90

Finding the Fourth Proportional to 6,290.50, 9,423.42 and 4,315.90

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Solution

The fourth proportional to 6,290.50, 9,423.42 and 4,315.90 is: 6,465.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.50 : 9,423.42 = 4,315.90 : x
  2. Step 2: Convert to fraction form
    6,290.50/9,423.42 = 4,315.90/x
  3. Step 3: Cross multiply
    6,290.50x = 9,423.42 × 4,315.90
  4. Step 4: Simplify right side
    6,290.50x = 40,670,538.38
  5. Step 5: Solve for x
    x = 40,670,538.38/6,290.50
  6. Step 6: Final answer
    x = 6,465.39

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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.