Home / 2,124.40-2,926.68-1,709.68

Finding the Fourth Proportional to 2,124.40, 2,926.68 and 1,709.68

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Solution

The fourth proportional to 2,124.40, 2,926.68 and 1,709.68 is: 2,355.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.40 : 2,926.68 = 1,709.68 : x
  2. Step 2: Convert to fraction form
    2,124.40/2,926.68 = 1,709.68/x
  3. Step 3: Cross multiply
    2,124.40x = 2,926.68 × 1,709.68
  4. Step 4: Simplify right side
    2,124.40x = 5,003,686.26
  5. Step 5: Solve for x
    x = 5,003,686.26/2,124.40
  6. Step 6: Final answer
    x = 2,355.34

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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.