Home / 2,689.16-3,711.35-1,570.37

Finding the Fourth Proportional to 2,689.16, 3,711.35 and 1,570.37

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Solution

The fourth proportional to 2,689.16, 3,711.35 and 1,570.37 is: 2,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.16 : 3,711.35 = 1,570.37 : x
  2. Step 2: Convert to fraction form
    2,689.16/3,711.35 = 1,570.37/x
  3. Step 3: Cross multiply
    2,689.16x = 3,711.35 × 1,570.37
  4. Step 4: Simplify right side
    2,689.16x = 5,828,194.13
  5. Step 5: Solve for x
    x = 5,828,194.13/2,689.16
  6. Step 6: Final answer
    x = 2,167.30

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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.