Home / 1,925.04-2,656.40-1,085.70

Finding the Fourth Proportional to 1,925.04, 2,656.40 and 1,085.70

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Solution

The fourth proportional to 1,925.04, 2,656.40 and 1,085.70 is: 1,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.04 : 2,656.40 = 1,085.70 : x
  2. Step 2: Convert to fraction form
    1,925.04/2,656.40 = 1,085.70/x
  3. Step 3: Cross multiply
    1,925.04x = 2,656.40 × 1,085.70
  4. Step 4: Simplify right side
    1,925.04x = 2,884,048.05
  5. Step 5: Solve for x
    x = 2,884,048.05/1,925.04
  6. Step 6: Final answer
    x = 1,498.18

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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.