Home / 5,157.28-7,118.67-3,294.28

Finding the Fourth Proportional to 5,157.28, 7,118.67 and 3,294.28

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Solution

The fourth proportional to 5,157.28, 7,118.67 and 3,294.28 is: 4,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.28 : 7,118.67 = 3,294.28 : x
  2. Step 2: Convert to fraction form
    5,157.28/7,118.67 = 3,294.28/x
  3. Step 3: Cross multiply
    5,157.28x = 7,118.67 × 3,294.28
  4. Step 4: Simplify right side
    5,157.28x = 23,450,913.46
  5. Step 5: Solve for x
    x = 23,450,913.46/5,157.28
  6. Step 6: Final answer
    x = 4,547.15

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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.