Home / 1,858.07-2,560.60-1,360.86

Finding the Fourth Proportional to 1,858.07, 2,560.60 and 1,360.86

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Solution

The fourth proportional to 1,858.07, 2,560.60 and 1,360.86 is: 1,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.07 : 2,560.60 = 1,360.86 : x
  2. Step 2: Convert to fraction form
    1,858.07/2,560.60 = 1,360.86/x
  3. Step 3: Cross multiply
    1,858.07x = 2,560.60 × 1,360.86
  4. Step 4: Simplify right side
    1,858.07x = 3,484,618.12
  5. Step 5: Solve for x
    x = 3,484,618.12/1,858.07
  6. Step 6: Final answer
    x = 1,875.40

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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.