Home / 6,800.28-10,200.60-1,870.20

Finding the Fourth Proportional to 6,800.28, 10,200.60 and 1,870.20

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Solution

The fourth proportional to 6,800.28, 10,200.60 and 1,870.20 is: 2,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.28 : 10,200.60 = 1,870.20 : x
  2. Step 2: Convert to fraction form
    6,800.28/10,200.60 = 1,870.20/x
  3. Step 3: Cross multiply
    6,800.28x = 10,200.60 × 1,870.20
  4. Step 4: Simplify right side
    6,800.28x = 19,077,162.12
  5. Step 5: Solve for x
    x = 19,077,162.12/6,800.28
  6. Step 6: Final answer
    x = 2,805.35

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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.