Home / 2,570.76-3,547.80-1,731.60

Finding the Fourth Proportional to 2,570.76, 3,547.80 and 1,731.60

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Solution

The fourth proportional to 2,570.76, 3,547.80 and 1,731.60 is: 2,389.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,570.76 : 3,547.80 = 1,731.60 : x
  2. Step 2: Convert to fraction form
    2,570.76/3,547.80 = 1,731.60/x
  3. Step 3: Cross multiply
    2,570.76x = 3,547.80 × 1,731.60
  4. Step 4: Simplify right side
    2,570.76x = 6,143,370.48
  5. Step 5: Solve for x
    x = 6,143,370.48/2,570.76
  6. Step 6: Final answer
    x = 2,389.71

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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.