Home / 1,583.75-2,180.32-1,386.92

Finding the Fourth Proportional to 1,583.75, 2,180.32 and 1,386.92

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Solution

The fourth proportional to 1,583.75, 2,180.32 and 1,386.92 is: 1,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.75 : 2,180.32 = 1,386.92 : x
  2. Step 2: Convert to fraction form
    1,583.75/2,180.32 = 1,386.92/x
  3. Step 3: Cross multiply
    1,583.75x = 2,180.32 × 1,386.92
  4. Step 4: Simplify right side
    1,583.75x = 3,023,931.40
  5. Step 5: Solve for x
    x = 3,023,931.40/1,583.75
  6. Step 6: Final answer
    x = 1,909.35

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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.