Home / 1,547.65-2,136.57-1,192.79

Finding the Fourth Proportional to 1,547.65, 2,136.57 and 1,192.79

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Solution

The fourth proportional to 1,547.65, 2,136.57 and 1,192.79 is: 1,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.65 : 2,136.57 = 1,192.79 : x
  2. Step 2: Convert to fraction form
    1,547.65/2,136.57 = 1,192.79/x
  3. Step 3: Cross multiply
    1,547.65x = 2,136.57 × 1,192.79
  4. Step 4: Simplify right side
    1,547.65x = 2,548,479.33
  5. Step 5: Solve for x
    x = 2,548,479.33/1,547.65
  6. Step 6: Final answer
    x = 1,646.68

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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.