Home / 1,136.36-1,569.30-1,134.20

Finding the Fourth Proportional to 1,136.36, 1,569.30 and 1,134.20

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Solution

The fourth proportional to 1,136.36, 1,569.30 and 1,134.20 is: 1,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.36 : 1,569.30 = 1,134.20 : x
  2. Step 2: Convert to fraction form
    1,136.36/1,569.30 = 1,134.20/x
  3. Step 3: Cross multiply
    1,136.36x = 1,569.30 × 1,134.20
  4. Step 4: Simplify right side
    1,136.36x = 1,779,900.06
  5. Step 5: Solve for x
    x = 1,779,900.06/1,136.36
  6. Step 6: Final answer
    x = 1,566.32

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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.