Home / 1,478.04-2,039.40-848.49

Finding the Fourth Proportional to 1,478.04, 2,039.40 and 848.49

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Solution

The fourth proportional to 1,478.04, 2,039.40 and 848.49 is: 1,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.04 : 2,039.40 = 848.49 : x
  2. Step 2: Convert to fraction form
    1,478.04/2,039.40 = 848.49/x
  3. Step 3: Cross multiply
    1,478.04x = 2,039.40 × 848.49
  4. Step 4: Simplify right side
    1,478.04x = 1,730,410.51
  5. Step 5: Solve for x
    x = 1,730,410.51/1,478.04
  6. Step 6: Final answer
    x = 1,170.75

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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.