Home / 2,124.46-2,931.60-1,180.36

Finding the Fourth Proportional to 2,124.46, 2,931.60 and 1,180.36

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Solution

The fourth proportional to 2,124.46, 2,931.60 and 1,180.36 is: 1,628.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.46 : 2,931.60 = 1,180.36 : x
  2. Step 2: Convert to fraction form
    2,124.46/2,931.60 = 1,180.36/x
  3. Step 3: Cross multiply
    2,124.46x = 2,931.60 × 1,180.36
  4. Step 4: Simplify right side
    2,124.46x = 3,460,343.38
  5. Step 5: Solve for x
    x = 3,460,343.38/2,124.46
  6. Step 6: Final answer
    x = 1,628.81

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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.