Home / 5,415.48-8,123.51-1,717.99

Finding the Fourth Proportional to 5,415.48, 8,123.51 and 1,717.99

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Solution

The fourth proportional to 5,415.48, 8,123.51 and 1,717.99 is: 2,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.48 : 8,123.51 = 1,717.99 : x
  2. Step 2: Convert to fraction form
    5,415.48/8,123.51 = 1,717.99/x
  3. Step 3: Cross multiply
    5,415.48x = 8,123.51 × 1,717.99
  4. Step 4: Simplify right side
    5,415.48x = 13,956,108.94
  5. Step 5: Solve for x
    x = 13,956,108.94/5,415.48
  6. Step 6: Final answer
    x = 2,577.08

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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.