Home / 5,281.30-7,289.02-3,012.65

Finding the Fourth Proportional to 5,281.30, 7,289.02 and 3,012.65

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Solution

The fourth proportional to 5,281.30, 7,289.02 and 3,012.65 is: 4,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.30 : 7,289.02 = 3,012.65 : x
  2. Step 2: Convert to fraction form
    5,281.30/7,289.02 = 3,012.65/x
  3. Step 3: Cross multiply
    5,281.30x = 7,289.02 × 3,012.65
  4. Step 4: Simplify right side
    5,281.30x = 21,959,266.10
  5. Step 5: Solve for x
    x = 21,959,266.10/5,281.30
  6. Step 6: Final answer
    x = 4,157.93

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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.