Home / 1,547.45-2,135.51-848.82

Finding the Fourth Proportional to 1,547.45, 2,135.51 and 848.82

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Solution

The fourth proportional to 1,547.45, 2,135.51 and 848.82 is: 1,171.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.45 : 2,135.51 = 848.82 : x
  2. Step 2: Convert to fraction form
    1,547.45/2,135.51 = 848.82/x
  3. Step 3: Cross multiply
    1,547.45x = 2,135.51 × 848.82
  4. Step 4: Simplify right side
    1,547.45x = 1,812,663.60
  5. Step 5: Solve for x
    x = 1,812,663.60/1,547.45
  6. Step 6: Final answer
    x = 1,171.39

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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.