Home / 2,570.41-3,547.16-1,391.48

Finding the Fourth Proportional to 2,570.41, 3,547.16 and 1,391.48

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Solution

The fourth proportional to 2,570.41, 3,547.16 and 1,391.48 is: 1,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.41 : 3,547.16 = 1,391.48 : x
  2. Step 2: Convert to fraction form
    2,570.41/3,547.16 = 1,391.48/x
  3. Step 3: Cross multiply
    2,570.41x = 3,547.16 × 1,391.48
  4. Step 4: Simplify right side
    2,570.41x = 4,935,802.20
  5. Step 5: Solve for x
    x = 4,935,802.20/2,570.41
  6. Step 6: Final answer
    x = 1,920.24

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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.