Home / 1,909.71-2,635.51-1,070.37

Finding the Fourth Proportional to 1,909.71, 2,635.51 and 1,070.37

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Solution

The fourth proportional to 1,909.71, 2,635.51 and 1,070.37 is: 1,477.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.71 : 2,635.51 = 1,070.37 : x
  2. Step 2: Convert to fraction form
    1,909.71/2,635.51 = 1,070.37/x
  3. Step 3: Cross multiply
    1,909.71x = 2,635.51 × 1,070.37
  4. Step 4: Simplify right side
    1,909.71x = 2,820,982.06
  5. Step 5: Solve for x
    x = 2,820,982.06/1,909.71
  6. Step 6: Final answer
    x = 1,477.18

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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.