Home / 7,547.28-11,321.81-2,870.82

Finding the Fourth Proportional to 7,547.28, 11,321.81 and 2,870.82

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Solution

The fourth proportional to 7,547.28, 11,321.81 and 2,870.82 is: 4,306.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.28 : 11,321.81 = 2,870.82 : x
  2. Step 2: Convert to fraction form
    7,547.28/11,321.81 = 2,870.82/x
  3. Step 3: Cross multiply
    7,547.28x = 11,321.81 × 2,870.82
  4. Step 4: Simplify right side
    7,547.28x = 32,502,864.23
  5. Step 5: Solve for x
    x = 32,502,864.23/7,547.28
  6. Step 6: Final answer
    x = 4,306.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.