Home / 1,646.80-2,274.52-1,057.84

Finding the Fourth Proportional to 1,646.80, 2,274.52 and 1,057.84

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Solution

The fourth proportional to 1,646.80, 2,274.52 and 1,057.84 is: 1,461.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.80 : 2,274.52 = 1,057.84 : x
  2. Step 2: Convert to fraction form
    1,646.80/2,274.52 = 1,057.84/x
  3. Step 3: Cross multiply
    1,646.80x = 2,274.52 × 1,057.84
  4. Step 4: Simplify right side
    1,646.80x = 2,406,078.24
  5. Step 5: Solve for x
    x = 2,406,078.24/1,646.80
  6. Step 6: Final answer
    x = 1,461.06

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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.