Home / 1,841.09-2,538.99-1,420.77

Finding the Fourth Proportional to 1,841.09, 2,538.99 and 1,420.77

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Solution

The fourth proportional to 1,841.09, 2,538.99 and 1,420.77 is: 1,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.09 : 2,538.99 = 1,420.77 : x
  2. Step 2: Convert to fraction form
    1,841.09/2,538.99 = 1,420.77/x
  3. Step 3: Cross multiply
    1,841.09x = 2,538.99 × 1,420.77
  4. Step 4: Simplify right side
    1,841.09x = 3,607,320.82
  5. Step 5: Solve for x
    x = 3,607,320.82/1,841.09
  6. Step 6: Final answer
    x = 1,959.35

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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.