Home / 2,117.10-2,920.14-1,488.96

Finding the Fourth Proportional to 2,117.10, 2,920.14 and 1,488.96

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Solution

The fourth proportional to 2,117.10, 2,920.14 and 1,488.96 is: 2,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.10 : 2,920.14 = 1,488.96 : x
  2. Step 2: Convert to fraction form
    2,117.10/2,920.14 = 1,488.96/x
  3. Step 3: Cross multiply
    2,117.10x = 2,920.14 × 1,488.96
  4. Step 4: Simplify right side
    2,117.10x = 4,347,971.65
  5. Step 5: Solve for x
    x = 4,347,971.65/2,117.10
  6. Step 6: Final answer
    x = 2,053.74

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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.