Home / 1,407.09-1,941.10-910.16

Finding the Fourth Proportional to 1,407.09, 1,941.10 and 910.16

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Solution

The fourth proportional to 1,407.09, 1,941.10 and 910.16 is: 1,255.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.09 : 1,941.10 = 910.16 : x
  2. Step 2: Convert to fraction form
    1,407.09/1,941.10 = 910.16/x
  3. Step 3: Cross multiply
    1,407.09x = 1,941.10 × 910.16
  4. Step 4: Simplify right side
    1,407.09x = 1,766,711.58
  5. Step 5: Solve for x
    x = 1,766,711.58/1,407.09
  6. Step 6: Final answer
    x = 1,255.58

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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.