Home / 5,287.10-7,923.45-4,315.10

Finding the Fourth Proportional to 5,287.10, 7,923.45 and 4,315.10

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Solution

The fourth proportional to 5,287.10, 7,923.45 and 4,315.10 is: 6,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.10 : 7,923.45 = 4,315.10 : x
  2. Step 2: Convert to fraction form
    5,287.10/7,923.45 = 4,315.10/x
  3. Step 3: Cross multiply
    5,287.10x = 7,923.45 × 4,315.10
  4. Step 4: Simplify right side
    5,287.10x = 34,190,479.10
  5. Step 5: Solve for x
    x = 34,190,479.10/5,287.10
  6. Step 6: Final answer
    x = 6,466.77

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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.