Home / 2,690.02-3,713.40-1,570.53

Finding the Fourth Proportional to 2,690.02, 3,713.40 and 1,570.53

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Solution

The fourth proportional to 2,690.02, 3,713.40 and 1,570.53 is: 2,168.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.02 : 3,713.40 = 1,570.53 : x
  2. Step 2: Convert to fraction form
    2,690.02/3,713.40 = 1,570.53/x
  3. Step 3: Cross multiply
    2,690.02x = 3,713.40 × 1,570.53
  4. Step 4: Simplify right side
    2,690.02x = 5,832,006.10
  5. Step 5: Solve for x
    x = 5,832,006.10/2,690.02
  6. Step 6: Final answer
    x = 2,168.02

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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.