Home / 2,068.65-2,854.29-1,312.68

Finding the Fourth Proportional to 2,068.65, 2,854.29 and 1,312.68

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Solution

The fourth proportional to 2,068.65, 2,854.29 and 1,312.68 is: 1,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.65 : 2,854.29 = 1,312.68 : x
  2. Step 2: Convert to fraction form
    2,068.65/2,854.29 = 1,312.68/x
  3. Step 3: Cross multiply
    2,068.65x = 2,854.29 × 1,312.68
  4. Step 4: Simplify right side
    2,068.65x = 3,746,769.40
  5. Step 5: Solve for x
    x = 3,746,769.40/2,068.65
  6. Step 6: Final answer
    x = 1,811.21

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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.