Home / 4,280.40-5,904.72-3,099.42

Finding the Fourth Proportional to 4,280.40, 5,904.72 and 3,099.42

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Solution

The fourth proportional to 4,280.40, 5,904.72 and 3,099.42 is: 4,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.40 : 5,904.72 = 3,099.42 : x
  2. Step 2: Convert to fraction form
    4,280.40/5,904.72 = 3,099.42/x
  3. Step 3: Cross multiply
    4,280.40x = 5,904.72 × 3,099.42
  4. Step 4: Simplify right side
    4,280.40x = 18,301,207.26
  5. Step 5: Solve for x
    x = 18,301,207.26/4,280.40
  6. Step 6: Final answer
    x = 4,275.58

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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.