Home / 1,830.18-2,526.75-1,386.30

Finding the Fourth Proportional to 1,830.18, 2,526.75 and 1,386.30

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Solution

The fourth proportional to 1,830.18, 2,526.75 and 1,386.30 is: 1,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,830.18 : 2,526.75 = 1,386.30 : x
  2. Step 2: Convert to fraction form
    1,830.18/2,526.75 = 1,386.30/x
  3. Step 3: Cross multiply
    1,830.18x = 2,526.75 × 1,386.30
  4. Step 4: Simplify right side
    1,830.18x = 3,502,833.53
  5. Step 5: Solve for x
    x = 3,502,833.53/1,830.18
  6. Step 6: Final answer
    x = 1,913.93

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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.