Home / 2,089.40-3,137.70-1,477.40

Finding the Fourth Proportional to 2,089.40, 3,137.70 and 1,477.40

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Solution

The fourth proportional to 2,089.40, 3,137.70 and 1,477.40 is: 2,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.40 : 3,137.70 = 1,477.40 : x
  2. Step 2: Convert to fraction form
    2,089.40/3,137.70 = 1,477.40/x
  3. Step 3: Cross multiply
    2,089.40x = 3,137.70 × 1,477.40
  4. Step 4: Simplify right side
    2,089.40x = 4,635,637.98
  5. Step 5: Solve for x
    x = 4,635,637.98/2,089.40
  6. Step 6: Final answer
    x = 2,218.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.