Home / 4,870.30-7,305.45-3,898.30

Finding the Fourth Proportional to 4,870.30, 7,305.45 and 3,898.30

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Solution

The fourth proportional to 4,870.30, 7,305.45 and 3,898.30 is: 5,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.30 : 7,305.45 = 3,898.30 : x
  2. Step 2: Convert to fraction form
    4,870.30/7,305.45 = 3,898.30/x
  3. Step 3: Cross multiply
    4,870.30x = 7,305.45 × 3,898.30
  4. Step 4: Simplify right side
    4,870.30x = 28,478,835.74
  5. Step 5: Solve for x
    x = 28,478,835.74/4,870.30
  6. Step 6: Final answer
    x = 5,847.45

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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.