Home / 5,619.36-7,742.16-5,095.20

Finding the Fourth Proportional to 5,619.36, 7,742.16 and 5,095.20

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Solution

The fourth proportional to 5,619.36, 7,742.16 and 5,095.20 is: 7,019.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.36 : 7,742.16 = 5,095.20 : x
  2. Step 2: Convert to fraction form
    5,619.36/7,742.16 = 5,095.20/x
  3. Step 3: Cross multiply
    5,619.36x = 7,742.16 × 5,095.20
  4. Step 4: Simplify right side
    5,619.36x = 39,447,853.63
  5. Step 5: Solve for x
    x = 39,447,853.63/5,619.36
  6. Step 6: Final answer
    x = 7,019.99

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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.