Home / 5,276.02-7,280.76-2,918.12

Finding the Fourth Proportional to 5,276.02, 7,280.76 and 2,918.12

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Solution

The fourth proportional to 5,276.02, 7,280.76 and 2,918.12 is: 4,026.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.02 : 7,280.76 = 2,918.12 : x
  2. Step 2: Convert to fraction form
    5,276.02/7,280.76 = 2,918.12/x
  3. Step 3: Cross multiply
    5,276.02x = 7,280.76 × 2,918.12
  4. Step 4: Simplify right side
    5,276.02x = 21,246,131.37
  5. Step 5: Solve for x
    x = 21,246,131.37/5,276.02
  6. Step 6: Final answer
    x = 4,026.92

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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.