Home / 2,113.74-2,917.98-1,406.76

Finding the Fourth Proportional to 2,113.74, 2,917.98 and 1,406.76

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Solution

The fourth proportional to 2,113.74, 2,917.98 and 1,406.76 is: 1,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.74 : 2,917.98 = 1,406.76 : x
  2. Step 2: Convert to fraction form
    2,113.74/2,917.98 = 1,406.76/x
  3. Step 3: Cross multiply
    2,113.74x = 2,917.98 × 1,406.76
  4. Step 4: Simplify right side
    2,113.74x = 4,104,901.19
  5. Step 5: Solve for x
    x = 4,104,901.19/2,113.74
  6. Step 6: Final answer
    x = 1,942.01

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Double scale
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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.