Home / 2,195.04-3,031.68-1,985.16

Finding the Fourth Proportional to 2,195.04, 3,031.68 and 1,985.16

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Solution

The fourth proportional to 2,195.04, 3,031.68 and 1,985.16 is: 2,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.04 : 3,031.68 = 1,985.16 : x
  2. Step 2: Convert to fraction form
    2,195.04/3,031.68 = 1,985.16/x
  3. Step 3: Cross multiply
    2,195.04x = 3,031.68 × 1,985.16
  4. Step 4: Simplify right side
    2,195.04x = 6,018,369.87
  5. Step 5: Solve for x
    x = 6,018,369.87/2,195.04
  6. Step 6: Final answer
    x = 2,741.80

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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.