Home / 2,670.23-3,681.34-1,872.48

Finding the Fourth Proportional to 2,670.23, 3,681.34 and 1,872.48

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Solution

The fourth proportional to 2,670.23, 3,681.34 and 1,872.48 is: 2,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.23 : 3,681.34 = 1,872.48 : x
  2. Step 2: Convert to fraction form
    2,670.23/3,681.34 = 1,872.48/x
  3. Step 3: Cross multiply
    2,670.23x = 3,681.34 × 1,872.48
  4. Step 4: Simplify right side
    2,670.23x = 6,893,235.52
  5. Step 5: Solve for x
    x = 6,893,235.52/2,670.23
  6. Step 6: Final answer
    x = 2,581.51

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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.