Home / 5,913.40-8,870.10-3,148.60

Finding the Fourth Proportional to 5,913.40, 8,870.10 and 3,148.60

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Solution

The fourth proportional to 5,913.40, 8,870.10 and 3,148.60 is: 4,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.40 : 8,870.10 = 3,148.60 : x
  2. Step 2: Convert to fraction form
    5,913.40/8,870.10 = 3,148.60/x
  3. Step 3: Cross multiply
    5,913.40x = 8,870.10 × 3,148.60
  4. Step 4: Simplify right side
    5,913.40x = 27,928,396.86
  5. Step 5: Solve for x
    x = 27,928,396.86/5,913.40
  6. Step 6: Final answer
    x = 4,722.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.