Home / 1,710.11-2,360.07-1,289.72

Finding the Fourth Proportional to 1,710.11, 2,360.07 and 1,289.72

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Solution

The fourth proportional to 1,710.11, 2,360.07 and 1,289.72 is: 1,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.11 : 2,360.07 = 1,289.72 : x
  2. Step 2: Convert to fraction form
    1,710.11/2,360.07 = 1,289.72/x
  3. Step 3: Cross multiply
    1,710.11x = 2,360.07 × 1,289.72
  4. Step 4: Simplify right side
    1,710.11x = 3,043,835.38
  5. Step 5: Solve for x
    x = 3,043,835.38/1,710.11
  6. Step 6: Final answer
    x = 1,779.90

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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.