Home / 2,507.39-3,459.95-1,388.03

Finding the Fourth Proportional to 2,507.39, 3,459.95 and 1,388.03

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Solution

The fourth proportional to 2,507.39, 3,459.95 and 1,388.03 is: 1,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,507.39 : 3,459.95 = 1,388.03 : x
  2. Step 2: Convert to fraction form
    2,507.39/3,459.95 = 1,388.03/x
  3. Step 3: Cross multiply
    2,507.39x = 3,459.95 × 1,388.03
  4. Step 4: Simplify right side
    2,507.39x = 4,802,516.11
  5. Step 5: Solve for x
    x = 4,802,516.11/2,507.39
  6. Step 6: Final answer
    x = 1,915.34

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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.