Home / 6,475-8,935.56-3,680.56

Finding the Fourth Proportional to 6,475, 8,935.56 and 3,680.56

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Solution

The fourth proportional to 6,475, 8,935.56 and 3,680.56 is: 5,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,475 : 8,935.56 = 3,680.56 : x
  2. Step 2: Convert to fraction form
    6,475/8,935.56 = 3,680.56/x
  3. Step 3: Cross multiply
    6,475x = 8,935.56 × 3,680.56
  4. Step 4: Simplify right side
    6,475x = 32,887,864.71
  5. Step 5: Solve for x
    x = 32,887,864.71/6,475
  6. Step 6: Final answer
    x = 5,079.21

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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.