Home / 2,129.02-2,937.23-1,570.81

Finding the Fourth Proportional to 2,129.02, 2,937.23 and 1,570.81

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Solution

The fourth proportional to 2,129.02, 2,937.23 and 1,570.81 is: 2,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.02 : 2,937.23 = 1,570.81 : x
  2. Step 2: Convert to fraction form
    2,129.02/2,937.23 = 1,570.81/x
  3. Step 3: Cross multiply
    2,129.02x = 2,937.23 × 1,570.81
  4. Step 4: Simplify right side
    2,129.02x = 4,613,830.26
  5. Step 5: Solve for x
    x = 4,613,830.26/2,129.02
  6. Step 6: Final answer
    x = 2,167.11

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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.