Home / 2,507.11-3,459.93-1,388.17

Finding the Fourth Proportional to 2,507.11, 3,459.93 and 1,388.17

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Solution

The fourth proportional to 2,507.11, 3,459.93 and 1,388.17 is: 1,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.11 : 3,459.93 = 1,388.17 : x
  2. Step 2: Convert to fraction form
    2,507.11/3,459.93 = 1,388.17/x
  3. Step 3: Cross multiply
    2,507.11x = 3,459.93 × 1,388.17
  4. Step 4: Simplify right side
    2,507.11x = 4,802,966.29
  5. Step 5: Solve for x
    x = 4,802,966.29/2,507.11
  6. Step 6: Final answer
    x = 1,915.74

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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.