Home / 2,126.10-2,926.86-1,829.64

Finding the Fourth Proportional to 2,126.10, 2,926.86 and 1,829.64

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Solution

The fourth proportional to 2,126.10, 2,926.86 and 1,829.64 is: 2,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.10 : 2,926.86 = 1,829.64 : x
  2. Step 2: Convert to fraction form
    2,126.10/2,926.86 = 1,829.64/x
  3. Step 3: Cross multiply
    2,126.10x = 2,926.86 × 1,829.64
  4. Step 4: Simplify right side
    2,126.10x = 5,355,100.13
  5. Step 5: Solve for x
    x = 5,355,100.13/2,126.10
  6. Step 6: Final answer
    x = 2,518.74

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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.