Home / 5,430.24-8,143.74-1,967.76

Finding the Fourth Proportional to 5,430.24, 8,143.74 and 1,967.76

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Solution

The fourth proportional to 5,430.24, 8,143.74 and 1,967.76 is: 2,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.24 : 8,143.74 = 1,967.76 : x
  2. Step 2: Convert to fraction form
    5,430.24/8,143.74 = 1,967.76/x
  3. Step 3: Cross multiply
    5,430.24x = 8,143.74 × 1,967.76
  4. Step 4: Simplify right side
    5,430.24x = 16,024,925.82
  5. Step 5: Solve for x
    x = 16,024,925.82/5,430.24
  6. Step 6: Final answer
    x = 2,951.05

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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.