Home / 1,909.64-2,635.40-1,070.35

Finding the Fourth Proportional to 1,909.64, 2,635.40 and 1,070.35

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Solution

The fourth proportional to 1,909.64, 2,635.40 and 1,070.35 is: 1,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.64 : 2,635.40 = 1,070.35 : x
  2. Step 2: Convert to fraction form
    1,909.64/2,635.40 = 1,070.35/x
  3. Step 3: Cross multiply
    1,909.64x = 2,635.40 × 1,070.35
  4. Step 4: Simplify right side
    1,909.64x = 2,820,796.48
  5. Step 5: Solve for x
    x = 2,820,796.48/1,909.64
  6. Step 6: Final answer
    x = 1,477.13

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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.