Home / 4,280.02-6,420.96-1,358.56

Finding the Fourth Proportional to 4,280.02, 6,420.96 and 1,358.56

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Solution

The fourth proportional to 4,280.02, 6,420.96 and 1,358.56 is: 2,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.02 : 6,420.96 = 1,358.56 : x
  2. Step 2: Convert to fraction form
    4,280.02/6,420.96 = 1,358.56/x
  3. Step 3: Cross multiply
    4,280.02x = 6,420.96 × 1,358.56
  4. Step 4: Simplify right side
    4,280.02x = 8,723,259.42
  5. Step 5: Solve for x
    x = 8,723,259.42/4,280.02
  6. Step 6: Final answer
    x = 2,038.14

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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.