Finding the Fourth Proportional to 2,130,248.12, 2,939,762.42 and 1,212,432.26
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Solution
The fourth proportional to 2,130,248.12, 2,939,762.42 and 1,212,432.26 is: 1,673,167.91
Step by Step Solution
- Step 1: Write the proportion equation
2,130,248.12 : 2,939,762.42 = 1,212,432.26 : x - Step 2: Convert to fraction form
2,130,248.12/2,939,762.42 = 1,212,432.26/x - Step 3: Cross multiply
2,130,248.12x = 2,939,762.42 × 1,212,432.26 - Step 4: Simplify right side
2,130,248.12x = 3,564,262,794,743.67 - Step 5: Solve for x
x = 3,564,262,794,743.67/2,130,248.12 - Step 6: Final answer
x = 1,673,167.91
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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.