Home / 1,924.95-2,656.40-1,085.64

Finding the Fourth Proportional to 1,924.95, 2,656.40 and 1,085.64

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Solution

The fourth proportional to 1,924.95, 2,656.40 and 1,085.64 is: 1,498.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.95 : 2,656.40 = 1,085.64 : x
  2. Step 2: Convert to fraction form
    1,924.95/2,656.40 = 1,085.64/x
  3. Step 3: Cross multiply
    1,924.95x = 2,656.40 × 1,085.64
  4. Step 4: Simplify right side
    1,924.95x = 2,883,888.67
  5. Step 5: Solve for x
    x = 2,883,888.67/1,924.95
  6. Step 6: Final answer
    x = 1,498.16

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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.