Home / 1,671.84-2,309.04-1,407.24

Finding the Fourth Proportional to 1,671.84, 2,309.04 and 1,407.24

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Solution

The fourth proportional to 1,671.84, 2,309.04 and 1,407.24 is: 1,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.84 : 2,309.04 = 1,407.24 : x
  2. Step 2: Convert to fraction form
    1,671.84/2,309.04 = 1,407.24/x
  3. Step 3: Cross multiply
    1,671.84x = 2,309.04 × 1,407.24
  4. Step 4: Simplify right side
    1,671.84x = 3,249,373.45
  5. Step 5: Solve for x
    x = 3,249,373.45/1,671.84
  6. Step 6: Final answer
    x = 1,943.59

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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.