Home / 4,715.85-6,510.72-3,123.85

Finding the Fourth Proportional to 4,715.85, 6,510.72 and 3,123.85

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Solution

The fourth proportional to 4,715.85, 6,510.72 and 3,123.85 is: 4,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.85 : 6,510.72 = 3,123.85 : x
  2. Step 2: Convert to fraction form
    4,715.85/6,510.72 = 3,123.85/x
  3. Step 3: Cross multiply
    4,715.85x = 6,510.72 × 3,123.85
  4. Step 4: Simplify right side
    4,715.85x = 20,338,464.50
  5. Step 5: Solve for x
    x = 20,338,464.50/4,715.85
  6. Step 6: Final answer
    x = 4,312.79

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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.