Home / 2,143.04-3,214.56-1,374.08

Finding the Fourth Proportional to 2,143.04, 3,214.56 and 1,374.08

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Solution

The fourth proportional to 2,143.04, 3,214.56 and 1,374.08 is: 2,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.04 : 3,214.56 = 1,374.08 : x
  2. Step 2: Convert to fraction form
    2,143.04/3,214.56 = 1,374.08/x
  3. Step 3: Cross multiply
    2,143.04x = 3,214.56 × 1,374.08
  4. Step 4: Simplify right side
    2,143.04x = 4,417,062.60
  5. Step 5: Solve for x
    x = 4,417,062.60/2,143.04
  6. Step 6: Final answer
    x = 2,061.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.