Home / 1,802.18-2,487.21-1,056.77

Finding the Fourth Proportional to 1,802.18, 2,487.21 and 1,056.77

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Solution

The fourth proportional to 1,802.18, 2,487.21 and 1,056.77 is: 1,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.18 : 2,487.21 = 1,056.77 : x
  2. Step 2: Convert to fraction form
    1,802.18/2,487.21 = 1,056.77/x
  3. Step 3: Cross multiply
    1,802.18x = 2,487.21 × 1,056.77
  4. Step 4: Simplify right side
    1,802.18x = 2,628,400.52
  5. Step 5: Solve for x
    x = 2,628,400.52/1,802.18
  6. Step 6: Final answer
    x = 1,458.45

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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.