Home / 3,095.79-4,272.75-1,977.08

Finding the Fourth Proportional to 3,095.79, 4,272.75 and 1,977.08

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Solution

The fourth proportional to 3,095.79, 4,272.75 and 1,977.08 is: 2,728.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,095.79 : 4,272.75 = 1,977.08 : x
  2. Step 2: Convert to fraction form
    3,095.79/4,272.75 = 1,977.08/x
  3. Step 3: Cross multiply
    3,095.79x = 4,272.75 × 1,977.08
  4. Step 4: Simplify right side
    3,095.79x = 8,447,547.21
  5. Step 5: Solve for x
    x = 8,447,547.21/3,095.79
  6. Step 6: Final answer
    x = 2,728.72

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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.