Home / 6,699.16-9,245.40-3,715.28

Finding the Fourth Proportional to 6,699.16, 9,245.40 and 3,715.28

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Solution

The fourth proportional to 6,699.16, 9,245.40 and 3,715.28 is: 5,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.16 : 9,245.40 = 3,715.28 : x
  2. Step 2: Convert to fraction form
    6,699.16/9,245.40 = 3,715.28/x
  3. Step 3: Cross multiply
    6,699.16x = 9,245.40 × 3,715.28
  4. Step 4: Simplify right side
    6,699.16x = 34,349,249.71
  5. Step 5: Solve for x
    x = 34,349,249.71/6,699.16
  6. Step 6: Final answer
    x = 5,127.40

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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.