Home / 2,478.16-3,699.55-2,391.65

Finding the Fourth Proportional to 2,478.16, 3,699.55 and 2,391.65

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Solution

The fourth proportional to 2,478.16, 3,699.55 and 2,391.65 is: 3,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.16 : 3,699.55 = 2,391.65 : x
  2. Step 2: Convert to fraction form
    2,478.16/3,699.55 = 2,391.65/x
  3. Step 3: Cross multiply
    2,478.16x = 3,699.55 × 2,391.65
  4. Step 4: Simplify right side
    2,478.16x = 8,848,028.76
  5. Step 5: Solve for x
    x = 8,848,028.76/2,478.16
  6. Step 6: Final answer
    x = 3,570.40

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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.