Home / 7,642.62-10,547.28-4,285.71

Finding the Fourth Proportional to 7,642.62, 10,547.28 and 4,285.71

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Solution

The fourth proportional to 7,642.62, 10,547.28 and 4,285.71 is: 5,914.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.62 : 10,547.28 = 4,285.71 : x
  2. Step 2: Convert to fraction form
    7,642.62/10,547.28 = 4,285.71/x
  3. Step 3: Cross multiply
    7,642.62x = 10,547.28 × 4,285.71
  4. Step 4: Simplify right side
    7,642.62x = 45,202,583.37
  5. Step 5: Solve for x
    x = 45,202,583.37/7,642.62
  6. Step 6: Final answer
    x = 5,914.54

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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.