Home / 5,775.36-8,666.70-3,315

Finding the Fourth Proportional to 5,775.36, 8,666.70 and 3,315

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Solution

The fourth proportional to 5,775.36, 8,666.70 and 3,315 is: 4,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.36 : 8,666.70 = 3,315 : x
  2. Step 2: Convert to fraction form
    5,775.36/8,666.70 = 3,315/x
  3. Step 3: Cross multiply
    5,775.36x = 8,666.70 × 3,315
  4. Step 4: Simplify right side
    5,775.36x = 28,730,110.50
  5. Step 5: Solve for x
    x = 28,730,110.50/5,775.36
  6. Step 6: Final answer
    x = 4,974.60

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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.