Home / 2,570.67-3,547.50-1,391.73

Finding the Fourth Proportional to 2,570.67, 3,547.50 and 1,391.73

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Solution

The fourth proportional to 2,570.67, 3,547.50 and 1,391.73 is: 1,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.67 : 3,547.50 = 1,391.73 : x
  2. Step 2: Convert to fraction form
    2,570.67/3,547.50 = 1,391.73/x
  3. Step 3: Cross multiply
    2,570.67x = 3,547.50 × 1,391.73
  4. Step 4: Simplify right side
    2,570.67x = 4,937,162.18
  5. Step 5: Solve for x
    x = 4,937,162.18/2,570.67
  6. Step 6: Final answer
    x = 1,920.57

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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.