Home / 6,985.28-10,478.10-2,055.08

Finding the Fourth Proportional to 6,985.28, 10,478.10 and 2,055.08

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Solution

The fourth proportional to 6,985.28, 10,478.10 and 2,055.08 is: 3,082.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.28 : 10,478.10 = 2,055.08 : x
  2. Step 2: Convert to fraction form
    6,985.28/10,478.10 = 2,055.08/x
  3. Step 3: Cross multiply
    6,985.28x = 10,478.10 × 2,055.08
  4. Step 4: Simplify right side
    6,985.28x = 21,533,281.36
  5. Step 5: Solve for x
    x = 21,533,281.36/6,985.28
  6. Step 6: Final answer
    x = 3,082.67

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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.