Home / 2,670.90-3,685.47-1,551.93

Finding the Fourth Proportional to 2,670.90, 3,685.47 and 1,551.93

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Solution

The fourth proportional to 2,670.90, 3,685.47 and 1,551.93 is: 2,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.90 : 3,685.47 = 1,551.93 : x
  2. Step 2: Convert to fraction form
    2,670.90/3,685.47 = 1,551.93/x
  3. Step 3: Cross multiply
    2,670.90x = 3,685.47 × 1,551.93
  4. Step 4: Simplify right side
    2,670.90x = 5,719,591.46
  5. Step 5: Solve for x
    x = 5,719,591.46/2,670.90
  6. Step 6: Final answer
    x = 2,141.45

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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.