Home / 5,439.36-8,125.76-4,345.76

Finding the Fourth Proportional to 5,439.36, 8,125.76 and 4,345.76

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Solution

The fourth proportional to 5,439.36, 8,125.76 and 4,345.76 is: 6,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.36 : 8,125.76 = 4,345.76 : x
  2. Step 2: Convert to fraction form
    5,439.36/8,125.76 = 4,345.76/x
  3. Step 3: Cross multiply
    5,439.36x = 8,125.76 × 4,345.76
  4. Step 4: Simplify right side
    5,439.36x = 35,312,602.78
  5. Step 5: Solve for x
    x = 35,312,602.78/5,439.36
  6. Step 6: Final answer
    x = 6,492.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.