Home / 7,642.72-10,547.45-4,285.75

Finding the Fourth Proportional to 7,642.72, 10,547.45 and 4,285.75

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Solution

The fourth proportional to 7,642.72, 10,547.45 and 4,285.75 is: 5,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.72 : 10,547.45 = 4,285.75 : x
  2. Step 2: Convert to fraction form
    7,642.72/10,547.45 = 4,285.75/x
  3. Step 3: Cross multiply
    7,642.72x = 10,547.45 × 4,285.75
  4. Step 4: Simplify right side
    7,642.72x = 45,203,733.84
  5. Step 5: Solve for x
    x = 45,203,733.84/7,642.72
  6. Step 6: Final answer
    x = 5,914.61

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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.