Home / 5,815.24-8,030.72-4,971.05

Finding the Fourth Proportional to 5,815.24, 8,030.72 and 4,971.05

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Solution

The fourth proportional to 5,815.24, 8,030.72 and 4,971.05 is: 6,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.24 : 8,030.72 = 4,971.05 : x
  2. Step 2: Convert to fraction form
    5,815.24/8,030.72 = 4,971.05/x
  3. Step 3: Cross multiply
    5,815.24x = 8,030.72 × 4,971.05
  4. Step 4: Simplify right side
    5,815.24x = 39,921,076.48
  5. Step 5: Solve for x
    x = 39,921,076.48/5,815.24
  6. Step 6: Final answer
    x = 6,864.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.