Home / 2,124.18-2,931.48-1,564.38

Finding the Fourth Proportional to 2,124.18, 2,931.48 and 1,564.38

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Solution

The fourth proportional to 2,124.18, 2,931.48 and 1,564.38 is: 2,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.18 : 2,931.48 = 1,564.38 : x
  2. Step 2: Convert to fraction form
    2,124.18/2,931.48 = 1,564.38/x
  3. Step 3: Cross multiply
    2,124.18x = 2,931.48 × 1,564.38
  4. Step 4: Simplify right side
    2,124.18x = 4,585,948.68
  5. Step 5: Solve for x
    x = 4,585,948.68/2,124.18
  6. Step 6: Final answer
    x = 2,158.93

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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.