Home / 1,578.51-2,165.49-1,484.28

Finding the Fourth Proportional to 1,578.51, 2,165.49 and 1,484.28

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Solution

The fourth proportional to 1,578.51, 2,165.49 and 1,484.28 is: 2,036.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.51 : 2,165.49 = 1,484.28 : x
  2. Step 2: Convert to fraction form
    1,578.51/2,165.49 = 1,484.28/x
  3. Step 3: Cross multiply
    1,578.51x = 2,165.49 × 1,484.28
  4. Step 4: Simplify right side
    1,578.51x = 3,214,193.50
  5. Step 5: Solve for x
    x = 3,214,193.50/1,578.51
  6. Step 6: Final answer
    x = 2,036.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.