Home / 4,280.15-6,421.25-1,358.46

Finding the Fourth Proportional to 4,280.15, 6,421.25 and 1,358.46

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Solution

The fourth proportional to 4,280.15, 6,421.25 and 1,358.46 is: 2,038.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.15 : 6,421.25 = 1,358.46 : x
  2. Step 2: Convert to fraction form
    4,280.15/6,421.25 = 1,358.46/x
  3. Step 3: Cross multiply
    4,280.15x = 6,421.25 × 1,358.46
  4. Step 4: Simplify right side
    4,280.15x = 8,723,014.67
  5. Step 5: Solve for x
    x = 8,723,014.67/4,280.15
  6. Step 6: Final answer
    x = 2,038.01

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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.