Home / 1,113.90-1,669.37-565.53

Finding the Fourth Proportional to 1,113.90, 1,669.37 and 565.53

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Solution

The fourth proportional to 1,113.90, 1,669.37 and 565.53 is: 847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.90 : 1,669.37 = 565.53 : x
  2. Step 2: Convert to fraction form
    1,113.90/1,669.37 = 565.53/x
  3. Step 3: Cross multiply
    1,113.90x = 1,669.37 × 565.53
  4. Step 4: Simplify right side
    1,113.90x = 944,075.99
  5. Step 5: Solve for x
    x = 944,075.99/1,113.90
  6. Step 6: Final answer
    x = 847.54

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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.