Home / 1,547.40-2,135.34-848.76

Finding the Fourth Proportional to 1,547.40, 2,135.34 and 848.76

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Solution

The fourth proportional to 1,547.40, 2,135.34 and 848.76 is: 1,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.40 : 2,135.34 = 848.76 : x
  2. Step 2: Convert to fraction form
    1,547.40/2,135.34 = 848.76/x
  3. Step 3: Cross multiply
    1,547.40x = 2,135.34 × 848.76
  4. Step 4: Simplify right side
    1,547.40x = 1,812,391.18
  5. Step 5: Solve for x
    x = 1,812,391.18/1,547.40
  6. Step 6: Final answer
    x = 1,171.25

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Half scale
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Double scale
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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.