Home / 4,985.16-7,479.03-1,865.19

Finding the Fourth Proportional to 4,985.16, 7,479.03 and 1,865.19

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Solution

The fourth proportional to 4,985.16, 7,479.03 and 1,865.19 is: 2,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.16 : 7,479.03 = 1,865.19 : x
  2. Step 2: Convert to fraction form
    4,985.16/7,479.03 = 1,865.19/x
  3. Step 3: Cross multiply
    4,985.16x = 7,479.03 × 1,865.19
  4. Step 4: Simplify right side
    4,985.16x = 13,949,811.97
  5. Step 5: Solve for x
    x = 13,949,811.97/4,985.16
  6. Step 6: Final answer
    x = 2,798.27

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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.