Home / 1,925.84-2,657.59-1,218.07

Finding the Fourth Proportional to 1,925.84, 2,657.59 and 1,218.07

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Solution

The fourth proportional to 1,925.84, 2,657.59 and 1,218.07 is: 1,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.84 : 2,657.59 = 1,218.07 : x
  2. Step 2: Convert to fraction form
    1,925.84/2,657.59 = 1,218.07/x
  3. Step 3: Cross multiply
    1,925.84x = 2,657.59 × 1,218.07
  4. Step 4: Simplify right side
    1,925.84x = 3,237,117.36
  5. Step 5: Solve for x
    x = 3,237,117.36/1,925.84
  6. Step 6: Final answer
    x = 1,680.89

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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.