Home / 6,870.20-10,298.90-4,790.20

Finding the Fourth Proportional to 6,870.20, 10,298.90 and 4,790.20

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Solution

The fourth proportional to 6,870.20, 10,298.90 and 4,790.20 is: 7,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.20 : 10,298.90 = 4,790.20 : x
  2. Step 2: Convert to fraction form
    6,870.20/10,298.90 = 4,790.20/x
  3. Step 3: Cross multiply
    6,870.20x = 10,298.90 × 4,790.20
  4. Step 4: Simplify right side
    6,870.20x = 49,333,790.78
  5. Step 5: Solve for x
    x = 49,333,790.78/6,870.20
  6. Step 6: Final answer
    x = 7,180.84

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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.