Home / 4,280.18-6,421.28-1,358.51

Finding the Fourth Proportional to 4,280.18, 6,421.28 and 1,358.51

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Solution

The fourth proportional to 4,280.18, 6,421.28 and 1,358.51 is: 2,038.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.18 : 6,421.28 = 1,358.51 : x
  2. Step 2: Convert to fraction form
    4,280.18/6,421.28 = 1,358.51/x
  3. Step 3: Cross multiply
    4,280.18x = 6,421.28 × 1,358.51
  4. Step 4: Simplify right side
    4,280.18x = 8,723,334.19
  5. Step 5: Solve for x
    x = 8,723,334.19/4,280.18
  6. Step 6: Final answer
    x = 2,038.08

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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.