Home / 4,887.90-7,328.78-2,698.16

Finding the Fourth Proportional to 4,887.90, 7,328.78 and 2,698.16

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Solution

The fourth proportional to 4,887.90, 7,328.78 and 2,698.16 is: 4,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.90 : 7,328.78 = 2,698.16 : x
  2. Step 2: Convert to fraction form
    4,887.90/7,328.78 = 2,698.16/x
  3. Step 3: Cross multiply
    4,887.90x = 7,328.78 × 2,698.16
  4. Step 4: Simplify right side
    4,887.90x = 19,774,221.04
  5. Step 5: Solve for x
    x = 19,774,221.04/4,887.90
  6. Step 6: Final answer
    x = 4,045.55

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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.