Home / 2,930.76-4,045.88-2,266.08

Finding the Fourth Proportional to 2,930.76, 4,045.88 and 2,266.08

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Solution

The fourth proportional to 2,930.76, 4,045.88 and 2,266.08 is: 3,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.76 : 4,045.88 = 2,266.08 : x
  2. Step 2: Convert to fraction form
    2,930.76/4,045.88 = 2,266.08/x
  3. Step 3: Cross multiply
    2,930.76x = 4,045.88 × 2,266.08
  4. Step 4: Simplify right side
    2,930.76x = 9,168,287.75
  5. Step 5: Solve for x
    x = 9,168,287.75/2,930.76
  6. Step 6: Final answer
    x = 3,128.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.