Home / 2,570.68-3,547.53-1,391.75

Finding the Fourth Proportional to 2,570.68, 3,547.53 and 1,391.75

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Solution

The fourth proportional to 2,570.68, 3,547.53 and 1,391.75 is: 1,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.68 : 3,547.53 = 1,391.75 : x
  2. Step 2: Convert to fraction form
    2,570.68/3,547.53 = 1,391.75/x
  3. Step 3: Cross multiply
    2,570.68x = 3,547.53 × 1,391.75
  4. Step 4: Simplify right side
    2,570.68x = 4,937,253.66
  5. Step 5: Solve for x
    x = 4,937,253.66/2,570.68
  6. Step 6: Final answer
    x = 1,920.61

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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.