Home / 3,117.63-4,302.87-1,859.41

Finding the Fourth Proportional to 3,117.63, 4,302.87 and 1,859.41

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Solution

The fourth proportional to 3,117.63, 4,302.87 and 1,859.41 is: 2,566.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.63 : 4,302.87 = 1,859.41 : x
  2. Step 2: Convert to fraction form
    3,117.63/4,302.87 = 1,859.41/x
  3. Step 3: Cross multiply
    3,117.63x = 4,302.87 × 1,859.41
  4. Step 4: Simplify right side
    3,117.63x = 8,000,799.51
  5. Step 5: Solve for x
    x = 8,000,799.51/3,117.63
  6. Step 6: Final answer
    x = 2,566.31

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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.