Home / 6,875.28-10,316.88-2,980.08

Finding the Fourth Proportional to 6,875.28, 10,316.88 and 2,980.08

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Solution

The fourth proportional to 6,875.28, 10,316.88 and 2,980.08 is: 4,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.28 : 10,316.88 = 2,980.08 : x
  2. Step 2: Convert to fraction form
    6,875.28/10,316.88 = 2,980.08/x
  3. Step 3: Cross multiply
    6,875.28x = 10,316.88 × 2,980.08
  4. Step 4: Simplify right side
    6,875.28x = 30,745,127.75
  5. Step 5: Solve for x
    x = 30,745,127.75/6,875.28
  6. Step 6: Final answer
    x = 4,471.84

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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.