Home / 1,578.02-2,347.01-1,545.21

Finding the Fourth Proportional to 1,578.02, 2,347.01 and 1,545.21

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Solution

The fourth proportional to 1,578.02, 2,347.01 and 1,545.21 is: 2,298.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.02 : 2,347.01 = 1,545.21 : x
  2. Step 2: Convert to fraction form
    1,578.02/2,347.01 = 1,545.21/x
  3. Step 3: Cross multiply
    1,578.02x = 2,347.01 × 1,545.21
  4. Step 4: Simplify right side
    1,578.02x = 3,626,615.60
  5. Step 5: Solve for x
    x = 3,626,615.60/1,578.02
  6. Step 6: Final answer
    x = 2,298.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.