Home / 1,909.94-2,635.45-1,070.69

Finding the Fourth Proportional to 1,909.94, 2,635.45 and 1,070.69

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Solution

The fourth proportional to 1,909.94, 2,635.45 and 1,070.69 is: 1,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.94 : 2,635.45 = 1,070.69 : x
  2. Step 2: Convert to fraction form
    1,909.94/2,635.45 = 1,070.69/x
  3. Step 3: Cross multiply
    1,909.94x = 2,635.45 × 1,070.69
  4. Step 4: Simplify right side
    1,909.94x = 2,821,734.11
  5. Step 5: Solve for x
    x = 2,821,734.11/1,909.94
  6. Step 6: Final answer
    x = 1,477.40

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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.